linux-kernel - Re: [PATCH v2 3/6] misc: fastrpc: Add support for context Invoke method

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Date:   Wed, 12 Dec 2018 12:02:34 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     robh+dt@...nel.org, arnd@...db.de, mark.rutland@....com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        bjorn.andersson@...aro.org, linux-arm-msm@...r.kernel.org,
        bkumar@....qualcomm.com, thierry.escande@...aro.org
Subject: Re: [PATCH v2 3/6] misc: fastrpc: Add support for context Invoke
 method

On Fri, Dec 07, 2018 at 04:35:10PM +0000, Srinivas Kandagatla wrote:
> +#define FASTRPC_BUILD_SCALARS(attr, method, in, out, oin, oout) \
> +		((((uint32_t)  (attr) & 0x07) << 29) | \
> +		(((uint32_t) (method) & 0x1f) << 24) | \

Why all of the uint32_t and uint64_t types in this patch, but not the
previous one?

Please just stick with u32 and u64, those are the correct kernel types
to be using everywhere.  uint32_t and friends are userspace things that
make no sense in kernel space.

Yes, I know people use them, but we should not be adding to the problem
by creating new instances of them for no good reason.

thanks,

greg k-h